PLATE VI. 



Hyocrinus bethellianus, Wyv. Thorns. 



Fig. 1. Radial view of the calyx and arms, 



Fig. 2. Inteiradial view of the entire specimen, 



Fig. 3. The calyx and arm-bases ; anal side, . 



Fig. 4. The disk, from above, .... 



Fig. 5. Inner view of a fragment of the upper portion of the d 



Fig. 6. Terminal joints of a pinnule, mounted in dammar, 



